@font-face{font-family:'BabelStonePUA';src:url('/yundian/assets/fonts/BabelStoneHanPUA.ttf') format('truetype');font-display:swap}
@font-face{font-family:'YundianGap';src:url('/yundian/assets/fonts/gap.woff2') format('woff2');font-display:swap}
@font-face{font-family:'YundianGapB';src:url('/yundian/assets/fonts/gapb.woff2') format('woff2');font-display:swap}
:root{
  --bg:#0e1116;--panel:#161b22;--gold:#c9a86a;--gold-dim:#7a5c2e;
  --text:#e8e2d0;--muted:#9a937e;--line:#2a2f38;
  /* 電紙書閱讀器變量（後面加 PUA / CJK 擴展區回退字體，解決符文/異體字缺失） */
  --rd-font:"YundianGap","YundianGapB","KaiTi","STKaiti","楷体","Kaiti SC","BabelStonePUA","BabelStone Han","HanaMinA","HanaMinB","HanaMinC","Segoe UI Historic","SimSun-ExtB","MingLiU-ExtB","PMingLiU-ExtB","Noto Sans CJK SC","Source Han Sans SC","WenQuanYi Zen Hei","Arial Unicode MS",serif;
  --rd-size:20px; --rd-line:2.0; --rd-space:0.02em; --rd-bright:100%;
  --paper:#f3e9d2; --ink:#2b2620; --ink-soft:#6b5d44; --desk:#3a342b;
  --edge:#d8c79c; --page-shadow:rgba(0,0,0,.35);
}
body.theme-sepia{ --paper:#ecdcb6; --ink:#3a2c1c; --ink-soft:#7a6342; --desk:#4a3c28; --edge:#cdb27e; }
body.theme-green{ --paper:#d6e8d2; --ink:#283a2c; --ink-soft:#5a6b52; --desk:#cfe0c8; --edge:#b7d2ad; }
body.theme-night{ --paper:#1d2128; --ink:#cdc6b2; --ink-soft:#8b8576; --desk:#0c0e12; --edge:#2c323c; --page-shadow:rgba(0,0,0,.6); }
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Songti SC","SimSun","STSong",serif;background:radial-gradient(circle at 50% -10%,rgba(201,168,106,.07),transparent 55%),var(--bg);color:var(--text);line-height:1.9}
a{color:inherit;text-decoration:none}
.yd-header{padding:30px 24px 18px;text-align:center;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(201,168,106,.06),transparent)}
.yd-brand{font-family:"Chongxi Seal","Chongxi Small Seal","崇羲篆體",serif;font-size:38px;letter-spacing:.25em;color:var(--gold)}
.yd-brand span{font-family:"Songti SC",serif;font-size:13px;letter-spacing:.2em;color:var(--muted);margin-left:8px}
.yd-tagline{color:var(--muted);letter-spacing:.15em;margin-top:8px;font-size:14px}
.yd-search{margin:18px auto 0;max-width:480px}
.yd-search input{width:100%;padding:11px 16px;background:var(--panel);border:1px solid var(--line);border-radius:30px;color:var(--text);font-size:15px;outline:none}
.yd-search input:focus{border-color:var(--gold)}

.yd-main{display:flex;max-width:1280px;margin:0 auto;padding:24px;gap:24px;align-items:flex-start}
.yd-cats{width:200px;flex-shrink:0;position:sticky;top:24px;max-height:calc(100vh - 48px);overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;gap:4px;padding-right:4px;scrollbar-width:thin;scrollbar-color:var(--gold-dim) transparent}
.yd-cats::-webkit-scrollbar{width:5px}
.yd-cats::-webkit-scrollbar-thumb{background:var(--gold-dim);border-radius:3px}
.yd-cats .cat-h{font-size:13px;letter-spacing:.3em;color:var(--muted);padding:6px 14px 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.cat{padding:12px 16px;border-left:3px solid transparent;color:var(--muted);cursor:pointer;font-size:15px;letter-spacing:.08em;transition:.2s;border-radius:0 6px 6px 0}
.cat:hover{color:var(--text);background:rgba(201,168,106,.06)}
.cat.active{background:rgba(201,168,106,.12);color:var(--gold);border-left-color:var(--gold);font-weight:600}

.yd-books{flex:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:18px;min-width:0}
.book{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s}
.book:hover{border-color:var(--gold);transform:translateY(-3px)}
.book .cover{aspect-ratio:3/4;background:#0c0f15;display:block}
.book .cover img{width:100%;height:100%;object-fit:cover;display:block}
.book .info{padding:14px 16px}
.book h3{font-size:18px;letter-spacing:.05em;margin-bottom:4px;color:var(--text)}
.book .meta{color:var(--muted);font-size:12px;margin-bottom:8px}
.book .cat-tag{display:inline-block;font-size:11px;color:var(--gold);border:1px solid var(--gold-dim);border-radius:20px;padding:2px 10px;margin-bottom:10px;letter-spacing:.1em}
.book .status{font-size:12px;letter-spacing:.08em}
.status.ready{color:#7bbf8a}
.status.link{color:var(--gold)}
.book.link{border-color:var(--gold-dim)}
.book.link:hover{border-color:var(--gold)}

.yd-footer{text-align:center;color:var(--muted);font-size:12px;padding:30px;border-top:1px solid var(--line);letter-spacing:.1em}

/* ===== 電紙書閱讀器 ===== */
body.reader{ background:var(--desk); }
.rd-header{display:flex;align-items:center;gap:16px;padding:14px 24px;border-bottom:1px solid var(--edge);position:sticky;top:0;background:var(--desk);z-index:5}
.rd-back{color:var(--gold);font-size:14px;letter-spacing:.1em;white-space:nowrap}
.rd-header h1{font-size:21px;letter-spacing:.2em;flex:1;color:var(--ink);font-family:var(--rd-font)}
.rd-tools{display:flex;gap:8px}
.rd-tools button{background:transparent;border:1px solid var(--edge);color:var(--ink-soft);padding:6px 12px;border-radius:8px;cursor:pointer;font-size:15px;min-width:38px}
.rd-tools button:hover{border-color:var(--gold);color:var(--gold)}

/* 手機端底部操作欄（默認隱藏） */
.rd-mobile-bar{display:none}

.rd-body{display:flex;align-items:stretch}
.rd-toc{width:240px;flex-shrink:0;padding:20px 16px;border-right:1px solid var(--edge);height:calc(100vh - 58px);overflow:auto;position:sticky;top:58px;background:var(--desk);transition:transform .3s ease}
.rd-toc a{display:block;padding:7px 10px;color:var(--ink-soft);font-size:14px;border-radius:6px;cursor:pointer;line-height:1.5}
.rd-toc a:hover,.rd-toc a.active{background:rgba(201,168,106,.14);color:var(--gold)}

.rd-page-wrap{flex:1;display:flex;flex-direction:column;align-items:center;padding:14px 24px 36px;background:var(--desk);min-height:calc(100vh - 58px)}

/* 書頁（紙張） */
.rd-book{
  position:relative;
  width:min(820px, 94vw);
  height:calc(100vh - 210px);
  margin:6px auto 0;
  background-color:var(--paper);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23p)'/%3E%3C/svg%3E"),
    radial-gradient(circle at 50% 0%, rgba(255,255,255,.20), transparent 62%);
  background-blend-mode:multiply, normal;
  color:var(--ink);
  border-radius:6px;
  border:1px solid var(--edge);
  box-shadow:0 18px 50px var(--page-shadow), inset 0 0 70px rgba(120,90,40,.10);
  overflow:hidden;
  touch-action:pan-y;
}
.rd-book::before{
  content:""; position:absolute; inset:0; border-radius:6px; pointer-events:none; z-index:4;
  background:linear-gradient(90deg, rgba(0,0,0,.10), transparent 3.5%, transparent 96.5%, rgba(0,0,0,.10)),
             linear-gradient(0deg, rgba(0,0,0,.08), transparent 3.5%, transparent 96.5%, rgba(0,0,0,.08));
}
/* 翻頁內容（一次渲染一頁，單頁盒） */
.rd-flow{
  position:absolute; top:42px; left:48px; right:48px; bottom:42px;
  overflow:hidden;
  text-align:justify;
  animation:rdFade .22s ease;
}
@keyframes rdFade{from{opacity:.25}to{opacity:1}}
.rd-flow h2{font-family:var(--rd-font);font-size:calc(1em*1.24);text-align:center;letter-spacing:.18em;margin:0 0 26px;color:var(--ink);border-bottom:1px solid var(--edge);padding-bottom:14px}
.rd-flow p{margin:0 0 1.1em;text-indent:2em}
.rd-flow.vmode{ text-align:start; writing-mode:vertical-rl; }
.rd-flow.vmode h2{writing-mode:vertical-rl;border-bottom:none;border-left:1px solid var(--edge);padding:0 16px 0 0;margin:0 0 0 22px;text-align:start}
.rd-flow.vmode p{text-indent:0;margin:0 0 0 1.4em}

/* 頁碼與進度 */
.rd-nav{display:flex;align-items:center;gap:18px;margin-top:14px;color:var(--ink-soft);font-size:14px;letter-spacing:.1em}
.rd-nav button{background:transparent;border:1px solid var(--edge);color:var(--ink-soft);width:42px;height:38px;border-radius:8px;cursor:pointer;font-size:16px}
.rd-nav button:hover{border-color:var(--gold);color:var(--gold)}
.rd-pager .rd-slash{margin:0 5px;opacity:.5}
.rd-reward{margin-top:10px;text-align:center}
.rd-reward button{background:transparent;border:none;color:#7fff00;font-size:18px;letter-spacing:.3em;cursor:pointer;font-weight:600;font-family:var(--rd-font);text-shadow:0 0 10px rgba(127,255,0,.35);transition:.2s}
.rd-reward button:hover{color:#aaff00;text-shadow:0 0 16px rgba(127,255,0,.65);transform:scale(1.05)}
.rd-progress{width:min(820px,94vw);height:3px;background:rgba(201,168,106,.18);border-radius:3px;margin-top:10px;overflow:hidden}
.rd-progress-bar{height:100%;width:0;background:var(--gold);transition:width .3s}

/* 目錄浮層（☰ 觸發） */
body.toc-open .rd-toc{
  position:fixed; left:0; top:0; bottom:0; width:288px; max-width:84vw; z-index:72;
  box-shadow:12px 0 44px rgba(0,0,0,.45); transform:translateX(0);
}
body.toc-open::after{ content:""; position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:71; }

/* 設置抽屜 */
.rd-drawer{position:fixed;top:0;right:0;height:100%;width:312px;max-width:88vw;background:#fbf6ea;color:#3a2f23;z-index:60;box-shadow:-12px 0 44px rgba(0,0,0,.45);transform:translateX(106%);transition:transform .28s ease;padding:20px 22px;overflow:auto;border-left:3px solid var(--gold)}
.rd-drawer.open{transform:translateX(0)}
.rd-drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.42);z-index:55;opacity:0;pointer-events:none;transition:opacity .28s}
.rd-drawer-mask.show{opacity:1;pointer-events:auto}
.rd-drawer-h{font-size:18px;letter-spacing:.22em;color:var(--gold);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e3d6b8;padding-bottom:12px;margin-bottom:18px}
.rd-drawer-h button{background:none;border:none;font-size:26px;color:#9a8a66;cursor:pointer;line-height:1}
.rd-set-row{margin-bottom:20px}
.rd-set-row label{display:block;font-size:14px;letter-spacing:.08em;color:#6b5d44;margin-bottom:9px}
.rd-set-row.between{display:flex;align-items:center;justify-content:space-between}
.rd-set-row.between label{margin:0}
.rd-set-row .val{color:var(--gold);font-weight:600;font-family:var(--rd-font)}
.rd-set-row input[type=range]{width:100%;accent-color:var(--gold);cursor:pointer}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{flex:1;min-width:52px;padding:9px 4px;border:1px solid #d8c79c;background:#fff;color:#6b5d44;border-radius:8px;cursor:pointer;font-size:14px;font-family:var(--rd-font)}
.seg button.on{background:var(--gold);color:#1c1810;border-color:var(--gold)}
.toggle{padding:7px 22px;border:1px solid #d8c79c;background:#fff;color:#6b5d44;border-radius:20px;cursor:pointer;min-width:62px;font-size:14px}
.toggle.on{background:#3a7d6e;color:#fff;border-color:#3a7d6e}
.reset{width:100%;padding:10px;border:1px solid #d8c79c;background:#fff;color:#9a3b3b;border-radius:8px;cursor:pointer;letter-spacing:.1em;font-size:14px}
.rd-set-tip{font-size:12px;color:#9a8a66;margin-top:6px;line-height:1.7}

/* ===== 書架星標（首頁卡片） ===== */
.book .star{position:absolute;top:8px;right:8px;z-index:3;width:30px;height:30px;border:none;border-radius:50%;background:rgba(20,16,11,.55);color:#cfc3a4;font-size:15px;cursor:pointer;line-height:30px;text-align:center;transition:.2s}
.book .star:hover{background:rgba(20,16,11,.8);color:var(--gold)}
.book .star.on{background:var(--gold);color:#1c1810}

/* ===== 詳情頁 ===== */
body.detail{background:radial-gradient(circle at 50% -10%,rgba(201,168,106,.07),transparent 55%),var(--bg);color:var(--text)}
.dt-header{display:flex;align-items:center;gap:14px;padding:14px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:6}
.dt-back{color:var(--gold);font-size:14px;letter-spacing:.1em;white-space:nowrap}
.dt-header h1{flex:1;font-size:20px;letter-spacing:.16em;color:var(--text);font-family:var(--rd-font);text-align:center}
.dt-reward-btn{background:transparent;border:1px solid var(--gold-dim);color:var(--gold);padding:7px 14px;border-radius:20px;cursor:pointer;font-size:13px;white-space:nowrap}
.dt-reward-btn:hover{background:rgba(201,168,106,.12)}
.dt-main{max-width:860px;margin:0 auto;padding:24px 20px 120px;display:flex;flex-direction:column;gap:22px}
.dt-cover-wrap{display:flex;justify-content:center}
.dt-cover{width:240px}
.dt-cover img{width:100%;border-radius:6px;box-shadow:0 16px 44px rgba(0,0,0,.5)}
.dt-panel{display:flex;flex-direction:column;gap:18px}
.dt-meta{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.dt-row{display:flex;gap:14px;padding:6px 0;border-bottom:1px dashed var(--line)}
.dt-row:last-child{border-bottom:none}
.dt-k{color:var(--muted);font-size:13px;letter-spacing:.1em;width:56px;flex-shrink:0}
.dt-v{color:var(--text);font-size:15px}
.src-btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.src-btn{display:inline-block;padding:5px 12px;border:1px solid var(--gold);border-radius:999px;color:var(--gold);font-size:13px;letter-spacing:.04em;text-decoration:none;transition:.18s;background:rgba(201,168,106,.06)}
.src-btn:hover{background:var(--gold);color:#1a1208}
.src-hint{margin-top:9px;color:var(--muted);font-size:12px;line-height:1.7}
.dt-block{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.dt-block h3{font-size:15px;letter-spacing:.14em;color:var(--gold);margin-bottom:12px;font-family:var(--rd-font)}
.dt-block p{color:var(--text);line-height:1.95;font-size:15px;text-align:justify}
.dt-rec{background:linear-gradient(135deg,rgba(201,168,106,.10),transparent);border-left:3px solid var(--gold);border-radius:0 8px 8px 0;padding:14px 16px}
.dt-rec p{color:#e9dcc0;font-style:normal;line-height:2}
.dt-note{width:100%;min-height:120px;background:#0c0f15;border:1px solid var(--line);border-radius:8px;color:var(--text);font-family:var(--rd-font);font-size:15px;line-height:1.9;padding:12px 14px;resize:vertical;outline:none}
.dt-note:focus{border-color:var(--gold)}

/* 底部操作栏 */
.dt-bar{position:fixed;left:0;right:0;bottom:0;z-index:7;display:flex;align-items:center;gap:10px;padding:12px 18px;background:rgba(14,17,22,.96);border-top:1px solid var(--line);backdrop-filter:blur(8px)}
.dt-bar-btn{flex:1;padding:13px 8px;border:1px solid var(--line);background:transparent;color:var(--text);border-radius:10px;cursor:pointer;font-size:15px;letter-spacing:.05em;font-family:var(--rd-font)}
.dt-bar-btn:hover{border-color:var(--gold)}
.dt-bar-btn.on{background:rgba(201,168,106,.16);color:var(--gold);border-color:var(--gold)}
.dt-bar-btn.primary{flex:1.4;background:var(--gold);color:#1c1810;border-color:var(--gold);font-weight:600}
.dt-bar-btn.primary:hover{filter:brightness(1.08)}
.dt-prog{color:var(--gold);font-size:13px;white-space:nowrap;letter-spacing:.08em;margin:0 4px}

/* 目录抽屉 */
.dt-toc-drawer{position:fixed;left:0;top:0;bottom:0;width:300px;max-width:86vw;background:var(--panel);z-index:74;transform:translateX(-104%);transition:transform .28s ease;box-shadow:12px 0 44px rgba(0,0,0,.5);padding:18px 16px;overflow:auto;border-right:3px solid var(--gold)}
.dt-toc-drawer.open{transform:translateX(0)}
.dt-toc-h{font-size:17px;letter-spacing:.2em;color:var(--gold);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:14px}
.dt-toc-h button{background:none;border:none;font-size:24px;color:var(--muted);cursor:pointer;line-height:1}
.dt-toc-list a{display:block;padding:9px 12px;color:var(--text);font-size:14px;border-radius:6px;cursor:pointer;line-height:1.5}
.dt-toc-list a:hover{background:rgba(201,168,106,.12);color:var(--gold)}
.dt-toc-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:73;opacity:0;pointer-events:none;transition:opacity .28s}
.dt-toc-mask.show{opacity:1;pointer-events:auto}

/* ===== 弹窗（打賞 / 筆記） ===== */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:80;display:none;align-items:center;justify-content:center;padding:20px}
.modal.show{display:flex}
.modal-box{width:min(420px,92vw);background:#fbf6ea;color:#3a2f23;border-radius:14px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.5);max-height:86vh;display:flex;flex-direction:column}
.modal-h{font-size:18px;letter-spacing:.18em;color:var(--gold);display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #e3d6b8}
.modal-h button{background:none;border:none;font-size:26px;color:#9a8a66;cursor:pointer;line-height:1}
.modal-body{padding:20px;overflow:auto}
.modal-body .dt-note{background:#fff;border-color:#d8c79c;color:#3a2f23;min-height:180px}
.reward-qr{display:block;width:220px;max-width:70%;margin:0 auto 14px;border:1px solid #e3d6b8;border-radius:8px}
.reward-note{color:#6b5d44;font-size:14px;line-height:1.8;text-align:center}
.reward-note code{background:#f0e6cf;padding:1px 6px;border-radius:4px;font-size:12px}
.reward-link{display:block;text-align:center;margin-top:14px;padding:12px;border:1px solid var(--gold);border-radius:10px;color:var(--gold);text-decoration:none;font-weight:600}
.reward-link:hover{background:var(--gold);color:#1c1810}

/* ===== 首頁新版：搜索、本周閱讀、熱度榜、底部 Tab ===== */
.yd-home{max-width:960px;margin:0 auto;padding:18px 18px 96px}
.yd-home .yd-search{margin-bottom:22px}
.yd-home .yd-search input{background:#0c0f15}
.home-weekly{margin-bottom:28px}
.home-weekly h2,.home-h h2{font-size:18px;letter-spacing:.15em;color:var(--gold);margin-bottom:14px;font-family:var(--rd-font)}
.weekly-scroll{display:flex;gap:14px;overflow-x:auto;overflow-y:hidden;padding-bottom:8px;scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--gold-dim) transparent;-webkit-overflow-scrolling:touch}
.weekly-scroll::-webkit-scrollbar{height:5px}
.weekly-scroll::-webkit-scrollbar-thumb{background:var(--gold-dim);border-radius:3px}
.weekly-empty{color:var(--muted);font-size:14px;padding:18px 0;text-align:center}
.weekly-item{flex:0 0 110px;display:flex;flex-direction:column;align-items:center;gap:8px;text-decoration:none;color:var(--text)}
.weekly-item img{width:100%;aspect-ratio:3/4;border-radius:6px;box-shadow:0 10px 28px rgba(0,0,0,.45);object-fit:cover;background:#0c0f15}
.weekly-title{font-size:12px;line-height:1.45;letter-spacing:.05em;text-align:center;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:110px}

.home-hot{margin-top:10px}
.hot-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.hot-h h2{margin:0}
#hot-refresh{padding:7px 16px;border:1px solid var(--gold-dim);background:transparent;color:var(--gold);border-radius:20px;cursor:pointer;font-size:13px;letter-spacing:.08em}
#hot-refresh:hover{background:rgba(201,168,106,.12)}
.hot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.home-results{margin-top:22px}
.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px}

/* 底部導航 */
.tab-bar{position:fixed;left:0;right:0;bottom:0;height:64px;background:rgba(14,17,22,.96);border-top:1px solid var(--line);backdrop-filter:blur(10px);display:flex;z-index:100}
.tab-bar button{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;background:transparent;border:none;color:var(--muted);cursor:pointer;transition:.2s}
.tab-bar button span{font-size:20px;line-height:1}
.tab-bar button b{font-size:11px;font-weight:400;letter-spacing:.05em}
.tab-bar button.active{color:var(--gold)}
.tab-bar button:active{opacity:.7}

/* 書架 / 我的 通用 */
.page-h{font-size:20px;letter-spacing:.18em;color:var(--gold);margin:20px 0 14px;font-family:var(--rd-font)}
.mine-card{max-width:520px;margin:24px auto;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.mine-card h2{font-size:18px;letter-spacing:.15em;color:var(--gold);margin-bottom:18px;font-family:var(--rd-font)}
#mine-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:22px}
.stat{background:#0c0f15;border:1px solid var(--line);border-radius:10px;padding:16px;display:flex;flex-direction:column;align-items:center;gap:6px}
.stat b{font-size:26px;color:var(--gold);font-family:var(--rd-font)}
.stat span{font-size:13px;color:var(--muted);letter-spacing:.05em}
.mine-btn{width:100%;padding:13px;border:1px solid var(--gold);background:rgba(201,168,106,.1);color:var(--gold);border-radius:10px;cursor:pointer;font-size:15px;letter-spacing:.1em}
.mine-btn:hover{background:rgba(201,168,106,.18)}
.yd-footer{padding-bottom:76px}

@media(max-width:860px){
  .yd-main{flex-direction:column}
  .yd-cats{width:100%;position:static;flex-direction:row;flex-wrap:wrap;gap:8px}
  .yd-cats .cat-h{width:100%}
  .cat{border-left:none;border:1px solid var(--line);border-radius:20px;padding:8px 14px}
  .cat.active{border-color:var(--gold)}
}
@media(max-width:720px){
  .rd-body{flex-direction:column}
  .rd-toc{width:100%;height:auto;position:static;border-right:none;border-bottom:1px solid var(--edge);display:flex;flex-wrap:wrap;gap:6px}
  .rd-toc a{padding:5px 10px}
  .rd-page-wrap{padding:8px 8px 12px}

  /* 頂部極簡：只留返回+書名 */
  .rd-header{height:44px;padding:0 10px;gap:8px}
  .rd-header h1{font-size:16px;letter-spacing:.08em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .rd-back{font-size:13px;padding:6px 4px}
  .rd-tools{display:none}

  /* 書頁區域：減去頂部 44 + 底部 54 + 小邊距 */
  .rd-book{width:98vw; height:calc(100vh - 112px); margin:4px auto 0; border-radius:4px}
  .rd-flow{top:22px;left:18px;right:18px;bottom:22px}

  /* 桌面底欄隱藏，由手機底欄替代 */
  .rd-nav,.rd-reward,.rd-progress{display:none}

  /* 手機底部固定操作欄 */
  .rd-mobile-bar{
    position:fixed;left:0;right:0;bottom:0;height:52px;background:var(--desk);border-top:1px solid var(--edge);
    display:flex;align-items:center;justify-content:space-between;gap:2px;padding:0 6px;z-index:50;
    transition:transform .25s ease
  }
  .rd-mobile-bar button{
    flex:1;height:38px;background:transparent;border:1px solid var(--edge);color:var(--ink-soft);
    border-radius:8px;cursor:pointer;font-size:15px;display:flex;align-items:center;justify-content:center
  }
  .rd-mobile-bar button:active{background:rgba(201,168,106,.15)}
  .mb-pager{flex:1.2;text-align:center;color:var(--ink-soft);font-size:14px;letter-spacing:.05em;white-space:nowrap}
  .mb-pager .mb-slash{margin:0 3px;opacity:.5}

  /* 沉浸模式：點擊書頁中間隱藏頂底欄，最大化正文 */
  body.reader.immerse .rd-header{transform:translateY(-100%)}
  body.reader.immerse .rd-mobile-bar{transform:translateY(100%)}
  body.reader.immerse .rd-book{height:calc(100vh - 16px)}
  .rd-header,.rd-mobile-bar{transform:translateY(0)}
}